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Configurable Deployment Descriptor Model in NFV

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Abstract

The deployment of network services and functions in Network Function Virtualization (NFV) platforms is performed using deployment descriptors. The deployment descriptors describe the topology of the network service and the operation behavior of the network functions along with their resource requirements. They are huge file written manually by service providers devoid of any formal strategy besides experience. Designing those descriptors from scratch is undoubtedly a tedious and complex task given the dynamicity at which the NFV is constantly evolving. Additionally, relying solely on the service provider knowledge is not only error-prone, but also challengeable. Motivated by the design by reuse paradigm, we present in this paper a configurable descriptor model that allows to formalize best practices in designing descriptor models for a specific domain. A configurable descriptor model can be seen as a generic solution that needs to be configured by a service provider to suit the specific requirements of a deployed service. In this way, configurable descriptor models can ease and accelerate the modeling of deployment descriptors by providing an off-the-shelf-solution that can be easily configured in a “plug and play” fashion. Our prototypical implementation demonstrates the feasibility of our approach and the results of our experiments highlight the effectiveness of our proposed model.

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Funding

Funding was provided by Orange.

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Authors and Affiliations

  1. Orange Labs, Paris, France

    Wassim Sellil Atoui & Imen Grida Ben Yahia

  2. Lebanese International University, Beirut, Lebanon

    Nour Assy

  3. Telecom SudParis, SAMOVAR, Paris, France

    Wassim Sellil Atoui & Walid Gaaloul

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  1. Wassim Sellil Atoui
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  2. Nour Assy
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  4. Imen Grida Ben Yahia
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Correspondence to Wassim Sellil Atoui.

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Atoui, W.S., Assy, N., Gaaloul, W. et al. Configurable Deployment Descriptor Model in NFV. J Netw Syst Manage 28, 693–718 (2020). https://doi.org/10.1007/s10922-020-09531-2

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